I am currently working on a project that involves LabVIEW Communications. I need to capture data from an FM signal (ex. 95.5 MHz) at a very fast rate (10MHz or greater) using an FM Rx and a USRP. I have slightly modified the "Spectral Monitoring (History)" code to capture the FM modulated signal, but it captures the data in frames at a very slow rate (~500Hz). I am very new to this LabVIEW Communications. I notice that the intensity graph is captured in a matrix form, and can be saved as a CSV. I have made the samples/frame as low as I can without glitching the program. I want as many frames per second as possible. My Rx receives 88-108MHz signals. My USRP is rated from 50MHz to 2.2GHz. Every time the USRP receives a new bit of modulated data, I want LabView to Capture the data. Ideally, I would want a complete 500ms of data, where if I re-transmitted that modulated data at the original frequency (ex. 95.5MHz) it could be captured, and deciphered from another receiver. Attached is a screenshot of the program I am looking at.

LabVIEW

High Rate FM Data Collection Help

Author

I should have looked back on the USRP spec sheet. It states "Up to 20 MS/s baseband I/Q streaming for host-based processing with LabVIEW". Makes sense why it starts acting weird after 20MS/s. Thank you.

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LabVIEW

High Rate FM Data Collection Help

Re: High Rate FM Data Collection Help